, the gun debate in america is bubbling back up to the surface. one american politicians said the tragedy could have been prevented if the school principal had a weapon of her own. >> i wish to god she have had an m-4 in her office so she could have pulled it out and she did not have to lunch heroically with nothing in her hands, but she takes him out. >> there are also signs public opinion is turning in favor of tighter restrictions. polls show half of americans now favor stricter gun control laws. before the massacre in newtown, it was 42%. even some longtime supporters of gun rights have joined the cause. >> as an nra member, i believe enough is enough. we need to come to the table and end up with appropriate restrictions. >> senator dianne feinstein, democrat of california, has pledged to introduce legislation early next year to ban certain assault weapons, but the powerful gun lobby is almost certain to make it difficult to get such a powerful bill through congress. >> the german president is in cobble on his second visit -- on the second day of his visit to afghanistan -- in kabul.